A study of uranium speciation in acetate solutions at temperatures from 25 to 250°C

Mosselmans, J. Frederick; Bailey, Elizabeth; Schofield, Paul

Abstract

We report U L3-edge XAS analysis results from a study of the speciation of U(VI) in acetate solutions between 25 and 250°C, at pH's between 1.82 and 2.57 and [acetate]:[U] ratios of 0.5 to 50. At 25°C in excess acetate there are at least two acetate ligands in the equatorial plane with a U-O bond distance of 2.44 Å. At elevated temperatures with excess acetate, acetate is still coordinated but the speciation mixture appears more complicated. Less evidence exists for acetate coordination when [acetate]:[U] ratio is unity or below. pH within this limited range appears to have little effect on the uranyl speciation.

Citation

Mosselmans, J. F., Bailey, E., & Schofield, P. (2001). A study of uranium speciation in acetate solutions at temperatures from 25 to 250°C. Journal of Synchrotron Radiation, 8(2), 660-662. https://doi.org/10.1107/S0909049500015922

• Journal Article Type: Article
• Publication Date: Mar 1, 2001
• Deposit Date: Apr 25, 2021
• Journal: Journal of Synchrotron Radiation
• Print ISSN: 0909-0495
• Electronic ISSN: 1600-5775
• Publisher: International Union of Crystallography
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 2
• Pages: 660-662
• DOI: https://doi.org/10.1107/S0909049500015922
• Public URL: https://nottingham-repository.worktribe.com/output/5160861
• Publisher URL: http://scripts.iucr.org/cgi-bin/paper?S0909049500015922